Solve the multi step literal equation: solve equation for A b^2A^2-3g=q

State one method by which you can recognize a perfect square trinomial.

What’s the range cuz i can’t find it?

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?